.IIQ ( Intelligent Image Quality RAW) - Phase One Camera RAWS used to be supported for import earlier. I do not know when support broke. I recently compiled darktable from git as of 1.7.0+1677~ge238cce .IIQ does not open anymore.

Speaking on IRC a potential reason could be dropping of libraw from dt.

Subject changed from .IIQ Not supported to Phase One IQ250 Not supported

% Done changed from 0 to 50

Basic support has been added in current git master. The colors still look quite off but that's true of both the original IIQ and the converted DNG file. We're also missing a default base curve for this.

.IIQ ( Intelligent Image Quality RAW) - Phase One Camera RAWS used to be supported for import earlier. I do not know when support broke. I recently compiled darktable from git as of 1.7.0+1677~ge238cce .IIQ does not open anymore.

If you still have that camera (IQ250, or pretty much any other Phase One camera/medium format), it would be great if you could contribute the full raw sample set to the https://raw.pixls.us/